Amulet Books has announced the publication date for the fifth book in Jeff Kinney’s bestselling Diary of a Wimpy Kid series. The book will go on sale Tuesday, November 9, and for those keeping track: its cover will be purple (the first four books were red, blue, green, and yellow). Promotional events for the book will be disclosed this summer, as will its title.

“I feel like everything in the series has been leading up to the fifth book, which is about change and the different ways Greg and his best friend, Rowley, deal with it,” said Kinney in a statement. “To me, this book is the linchpin in the series, and I’m excited to be writing it.” More than 32 million Wimpy Kid books are in print in the U.S., and the books have been sold in more than 30 countries.